<?php

abstract class Core {
	protected $objects = array();
	
	public function __get($var) {
		if (class_exists($var)) {
			if (isset($this->objects[$var])) {
				return $this->objects[$var];
			} else {
				$this->objects[$var] = new $var();
				return $this->objects[$var];
			}
		}
		return false;
	}
	
	public function component($component) {
		$component_file = COMPONENT . underscore($component) . '_component.php';
		if (File::exists($component_file)) {
			require_once $component_file;
			$c = $component . 'Component';
			return new $c();
		}
	}	
	
    public function redirect($url, $status = null) {
        $codes = array(
            100 => 'Continue',
            101 => 'Switching Protocols',
            200 => 'OK',
            201 => 'Created',
            202 => 'Accepted',
            203 => 'Non-Authoritative Information',
            204 => 'No Content',
            205 => 'Reset Content',
            206 => 'Partial Content',
            300 => 'Multiple Choices',
            301 => 'Moved Permanently',
            302 => 'Found',
            303 => 'See Other',
            304 => 'Not Modified',
            305 => 'Use Proxy',
            307 => 'Temporary Redirect',
            400 => 'Bad Request',
            401 => 'Unauthorized',
            402 => 'Payment Required',
            403 => 'Forbidden',
            404 => 'Not Found',
            405 => 'Method Not Allowed',
            406 => 'Not Acceptable',
            407 => 'Proxy Authentication Required',
            408 => 'Request Time-out',
            409 => 'Conflict',
            410 => 'Gone',
            411 => 'Length Required',
            412 => 'Precondition Failed',
            413 => 'Request Entity Too Large',
            414 => 'Request-URI Too Large',
            415 => 'Unsupported Media Type',
            416 => 'Requested range not satisfiable',
            417 => 'Expectation Failed',
            500 => 'Internal Server Error',
            501 => 'Not Implemented',
            502 => 'Bad Gateway',
            503 => 'Service Unavailable',
            504 => 'Gateway Time-out'
        );
        if (!is_null($status) && isset($codes[$status])) {
            header('HTTP/1.1 ' . $status . ' ' . $codes[$status]);
        }
        header('Location: ' . Mapper::base() . $url);
    }
}

?>